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Data mining method applicable to integrated monitoring system of intelligent substation

A smart substation and data mining technology, applied in the direction of electric digital data processing, data processing applications, special data processing applications, etc., to improve algorithm efficiency, realize regular self-learning and automatic update, and optimize the conversion algorithm effect

Active Publication Date: 2013-12-18
STATE GRID CORP OF CHINA +2
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AI Technical Summary

Problems solved by technology

However, for substations, data mining has not carried out relevant research work. Considering the promotion and application of the integrated monitoring system of smart substations, the unified database established by it brings opportunities and challenges to the comprehensive analysis of smart substation information.

Method used

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  • Data mining method applicable to integrated monitoring system of intelligent substation
  • Data mining method applicable to integrated monitoring system of intelligent substation
  • Data mining method applicable to integrated monitoring system of intelligent substation

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Embodiment Construction

[0041] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0042] Such as figure 1 , the present invention provides a data mining method suitable for an integrated monitoring system of an intelligent substation, and the specific implementation steps are as follows:

[0043] 1) Substation data classification and preprocessing;

[0044]For the database of smart substations, the information systems represented are mostly real-valued systems, which cannot be processed directly by using the state values ​​commonly used in data mining. First, the real values ​​should be converted into discrete values ​​that are easy to understand and process, such as the current value Converts to High, Low, Humidity values ​​to Wet, Dry, etc.

[0045] The database of the intelligent substation integrated monitoring system can be regarded as an information system, and the information system is a data set, often expressed as a data table. ...

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Abstract

The invention provides a data mining method applicable to an integrated monitoring system of an intelligent substation. The data mining method comprises the following steps of: classifying and preprocessing substation data; dividing the discrete time of the preprocessed substation data to form a data set; mining the substation data so as to mine data member association rules in a historical database; mining additional substation data so as to mine the additional substation data and the data member association rules in the historical database; outputting the data member association rules to the outside. By data weight counting, the data rule strength has a quantitative index for subsequent application analysis and processing; the additional data are separately and dynamically mined and the additional data blocks are independently operated, the algorithm efficiency is greatly improved, and a knowledge base can self-learn periodically and can be automatically updated. The same reliable event data are provided for the advanced application of the intelligent substation, and the safe operation level of the intelligent substation is improved.

Description

technical field [0001] The invention belongs to the technical field of power system automation, and in particular relates to a data mining method suitable for an integrated monitoring system of an intelligent substation. Background technique [0002] With the gradual recommendation of the national smart grid construction work, smart substations have entered the stage of comprehensive construction. One of the important differences between smart substations and traditional substations and digital substations is that smart substations integrate a large number of smart electronic devices, informatization, digitization and interaction. The level has been improved, resulting in a substantial increase in the amount of data. The intelligent substation integrated monitoring system has established a unified database for the whole station, and the data of different subsystems and equipment are stored in the unified database. Although the amount of information has increased, an effectiv...

Claims

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Application Information

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IPC IPC(8): G06F17/30G06Q50/06
CPCY04S10/50
Inventor 姚志强樊陈窦仁晖任浩耿明志徐歆
Owner STATE GRID CORP OF CHINA
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